html,body{
	width:100%;
	height:100%;
}
.top-ul{
	width:100%;
	height:3.5rem;
	/*background:pink;*/
	display: flex;
	justify-content: space-around;
}
.top-ul>li{
	list-style: none;
	width:48%;
	height:3.5rem;
	line-height:3.5rem;
	text-align: center;
	font-size:16px;
}
/*.top-ul>li:nth-child(1){
	border-bottom:3px solid red;
}*/
.act2{
	border-bottom:3px solid red;
}